<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>数值输入框</title>
  </head>
  <body>
    <!-- #region main -->
    <input type="number" />
    <!-- #endregion main -->
  </body>
</html>
